The 1050 2GB is below my recommended 1050 Ti. You only have an i3 as well.
You have to pull back all the settings to the bottom when you go with less a machine than folk recommend.
Just recently my Fortnite game has dipping frames and stuttering a lot. I usually average 75-110 FPS, but now I average 30-80 FPS. My game is always dipping from 110 to 5 FPS, I know it couldn't be my PC since I have a pretty decent build. Here are my specs.
• GTX 1050 2GB
• INTEL 3.70 GHz CORE i3-6100 PROCESSOR
• 8 GB OF RAM
• WD BLUE 1TB HARD DRIVE
• 500W POWER SUPPLY
Thank you for taking your time to read and respond to this, Have a blessed day!